NASA announced the X-70 Fractal on November 4 at the UP.Summit at Kennedy Space Center in Florida. The agency described it as a crewed experimental aircraft with reconfigurable flight-control technology, capable of carrying up to 2,000 pounds of research payloads in internal and external bays.
The aircraft has a takeoff weight of 10,000 pounds, a cruise speed of Mach 0.75, a ceiling of 45,000 feet, and a range exceeding 1,500 nautical miles. NASA expects the first flight under its banner within the next two years.
Administrator Jared Isaacman framed the aircraft as part of a broader push to revive the agency's experimental aviation portfolio. "The X-70 Fractal gives NASA a crewed, high-performance platform to test advanced flight-control, maneuverability, and other cutting-edge technologies in real flight," Isaacman said in the agency's release. "Its modular design and ability to rapidly swap internal and external payloads will keep our teams flying, learning, and moving quickly from one experiment to the next."
What Remains Undisclosed
NASA did not identify who built the X-70 or how much the program cost. The agency also declined to specify which technologies the aircraft would test first. Aviation Week noted the contractor was not revealed, and The War Zone speculated the aircraft could be coming from a classified program or an existing manufacturer delivery. The real aircraft has not been shown publicly; the image accompanying the announcement is a computer-generated rendering.
The phrasing "under the NASA banner" in Isaacman's remarks suggests the aircraft may already exist in some form before formal agency integration. Whether that means a government prototype, a classified asset, or an airframe being repurposed remains unconfirmed.
A Testbed, Not a Technology Demonstrator
Unlike most X-planes, which are built around a single technology to prove, the Fractal is designed to host many different experiments. NASA says it will explore aircraft maneuverability "in ways never before demonstrated in crewed flight." The agency has not confirmed whether this involves thrust vectoring, unconventional control surfaces, or other experimental methods.
Isaacman, a pilot with over 8,000 flight hours who commanded the Inspiration4 civilian spaceflight, referenced the Bell X-1, X-15, Grumman X-29, and Rockwell/MBB X-31 during his remarks. The X-1 broke the sound barrier in 1947. The X-15 remains the fastest crewed aircraft ever flown. The X-29 and X-31 tested forward-swept wings and post-stall maneuvering, respectively.
The X-70 joins a growing roster of NASA and DARPA experimental aircraft in various stages of flight testing. Aurora Flight Sciences' X-65, a DARPA project using active flow control in place of traditional moving surfaces, was originally scheduled to fly in 2026. The Northrop Grumman XRQ-73 SHEPARD, a hybrid-electric demonstrator, completed its first flight in April. NASA's X-59 Quesst, built by Lockheed Martin to demonstrate quiet supersonic flight, has been conducting test flights since last year.
Isaacman hinted at additional announcements. "X-70 is just one part of this new beginning for aeronautics," he said. The Max Power air show, running this weekend at Kennedy's Shuttle Landing Facility, may provide more details.
